I'm painting my stair well and hall walls and ceilings.
A few days ago I washed down all surfaces and removed all the spider's webs, many of which were visible because they contained dust.
Painting today and the spiders have re-occupied the corners and have reconstructed their webs. It's a PITA when paint gets on the webs and to remove the resultant mess requires the use of fingers and wiping the wet paint on my T shirt!